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8V 8V 8V R113 C81 R39 C104 C179 C82 C48 5 R44 2 5 4 3 2 4 3 4 8 2 3 16 1 9 D2 R58 E3 U4 C16 C58 R145 C173 C88 R227 R69 8V C84 FM R213 C181 R198 DEV R105 R116 R115 C182 R153 Q15 Q17 C80 D4 8V Q18 R6 R64 4 1 R101 Q10 5 1 C55 R74 R46 C96 C51 D1 4 3 C53 OUT R120 2 5 2 6 D RF AMP IN 2 R84 CB1 R73 Q11 C97 1 10 11 12 13 14 5 R123 R47 Q3 R87 R86 C13 C8 R63 3 T5 R77 TP2 G T6 CF1 Q24 E2 C101 R143 C15 R111 R100 R78 R76 Q9 C100 C85 C79 C56 R41 Y1 C83 R137 1 D S R35 1 5 3 5 C78 3 4 2 R59 C57 S T1 Q1 C14 T4 5 Q2 3 1 4 2 C2 2 G R34 C1 1 R36 4 Q8 T3 3 R2 C76 T2 C87 C154 R118 C9 C86 R170 6 R38 4 C12 E6 7 R103 C10 R37 15 Diagram 2ST MIX R104 C52 R79 C102 R117 C98 R130 R1 R154 R230 R229 R134 C168 C103 D7 R126 Q12 C11 C54 E8 D6 D5 8V U1B R138 U1A R106 C60 8V 8V 4 R187 C117 R152 C24 8V R132 C5 R133 R49 C64 C4 D11 C130 C6 R156 8V 2 C20 R42 C21 Vout R178 C27 U7 D14 5C TP1 1 Vc1 16 Vc2 C129 E16 OSCout 5 Q26 R139 C105 W7 C146 8T 8V C35 R202 R203 R226 R188 R27 R53 R221 H/L TX EN PLL-LE PLL-DATA PLL-CLK LD MOD AF R67 C150 L4 L14 L16 L18 2 L19 L17 R237 R122 L15 R114 R209 C157 R211 R210 C160 C159 C163 C151 C161 C121 C162 R33 C152 C164 Q38 L12 C155 Q7 R55 R85 L11 R172 R82 R71 C118 R72 C73 C74 C75 C71 W5 8V R110 E21 R97 Q34 1 H/L C188 C158 Q37 C156 Q36 C153 E7 G R57 R56 D16 R176 C180 S R125 R32 C149 C132 C49 C148 C184 R54 R68 L10 R31 R30 U3A R25 C70 R29 C95 12 C189 R228 C72 L13 14 8 10 6 C47 R26 9 R28 7 R96 R147 D D15 C37 C50 13 C186 R217 5 C119 4 Q27 R99 U3D 8T 8V 3 FTX MUT VCO EN LED-V LED-DATA LED-TB LED-CLK 11 2 C109 D25 2 Q22 1 C123 R238 R83 D18 C187 U3B 8V 1 R236 Q23 Vin E22 C93 U3C R149 C108 R160 Q16 R214 Vout R171 R161 R150 C46 3 R162 R61 W4 1 2 3 4 PTT DN R112 C107 R159 C39 RX IN MIC MIC MUTE R43 W3 PA/RSSI C177 R148 C167 R225 E24 E19 C190 R207 R16 C92 R52 T10 D13 E23 R95 C166 +V 3 R24 Q39 C38 U11 C128 VCO-RF AMC MOD AF VOLHOT VOLCOW PTT RP3 T9 R17 8V C36 J3 UP 13V +V RF GAIN MIC C41 R183 R208 Q32 E18 R189 8 7 6 5 1 2 3 4 5 6 7 8 9 10 11 12 L8 C45 2 E20 Q31 5V SP- FB C42 R204 R94 R205 R212 R193 Vout R215 C106 R216 C170 Vin R158 R93 RP2 L7 C40 5V 3 R234 R169 R7 +V D24 13V R206 U8 Q41 C142 PLL FILTER Q29 R18 E9 Q33 C91 REF R51 R218 5C R21 C32 4 R196 C144 J4 1 TC1 U10 C141 1 2 3 5 C171 C143 C69 R129 C147 R119 Q21 7 L5 R22 C178 Y3 Gnd E17 R23 R182 Fin2 Do2 DATA CLOCK LE LD E15 C68 C31 R40 J1 H/L C77 C145 5 Fin1 3 Do1 6 OSCin Vss R220 L20 1 2 SP- 8 7 6 5 C126 12 14 10 9 11 8 R144 R197 C140 5V T8 R192 AMC 1 2 3 4 PTT LED-DATA LED-TB LED-CLK R75 PLL R81 R200 15 Vp2 2 Vp1 R199 Gnd R195 4 D22 L6 1 5V R191 D20 Q30 C139 13 C138 D21 R19 R146 IC1 E4 R235 C26 C125 C28 T7 L2 C22 R201 5V J2 W8 Q19 JK1 3 C176 C33 C99 C136 R13 R219 Q5 Q28 C61 R20 2 D27 C124 C122 R121 VCO-RF Q6 4 R180 R89 3 Vin 5C R164 EC SQ-CONT KEY1 KEY2 L3 C7 R185 5C R181 C67 C90 E14 R157 R184 D23 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 REF C25 1 C65 5C C175 HI-CUT C134 E13 Q4 C137 LED-V C165 C66 R190 R80 SDA CLK LED-CLK LED-TB LED-DATA PTT UK LD PLL-LE PLL-DATA PLL-CLK R91 R155 C133 Vss 44 43 42 41 40 39 38 37 36 35 34 FM/AM EN Q14 R50 +V R10 1 U5 P55 P56 P57 P97 P96 P95 P94 P93 P92 P91 P90 R92 6 W6 C63 R102 VOLC 23 FTX MUT 24 ATX MUTE25 26 H/L 27 HI-CUT FM/AM EN 28 AF MUTE 29 ASQ 30 SQ 31 32 TX EN VCO EN 33 XI XO BEEP REST MIC MUTE P65 AD6/P64 AD4/P63 AD3/P62 AD2/P61 AD1/P60 XIN XOUT P80 REST P77 Q20 C169 2 R175 R12 R11 5 11 10 9 8 7 6 5 4 3 2 1 12 13 14 15 16 17 18 19 20 21 22 8 7 6 5 P76/SCK P75/SDO P74/SDI P73/INT3 P72/INT2 P71/INT1 P70/INT0 PC0 PC1/PWM1 PC2/PWM2 PC3 RP1 1 2 3 4 P66 P67 AVSS PLLC AVDD COM0 COM1 COM2 COM3 SEG0 SEG1 DN EC DN UP R166 R165 7 K Q13 C30 C3 1 R186 C185 U2B 3 AK R65 R135 C19 U2A A R232 C174 C127 Vss C89 C115 2 C29 R8 5V D19 R9 4 REST 1 R66 C114 8 8 VCC GND Vout 8V 6 SCL 1 CE0 2 CE1 3 CE2 DEV 2st SQ-CONT SQ MIX LO PA/RSSI RF GAIN RX IN AM VOLC Vin TP9 R141 VOLCOW R15 E10 C111 R140 C120 MOD AF 3 XI R174 BEEP U6 C112 Q25 E5 R14 ATX MUTE R128 Y2 R70 C183 2st UK C135 5 SDA 7 MODE C113 R231 R127 R109 C131 U9 L1 XO D12 C23 ASQ 5V R194 R90 C116 C59 R168 MIX LO P66 R167 CLK 5V R48 C44 SDA C34 R179 W2 R60 4 R107 C43 R151 2 3 R233 UP P66 R108 R136 1 C172 C110 6 8V R173 C17 R142 3 D10 R163 C62 KEY2 KEY1 SQ-CONT PA/RSSI R131 R5 Vss D9 8 D8 R88 8T R4 R3 5 7 VOLHOT R62 R45 2 D3 AF MUTE E1 C18 R177 R98 C94 R124 D17 Q35 Q40 20 21